It has come to my attention the sony d22a is a rebranded liteon 1633s and the the d22a will not have any firmware updates. Currently my drive is very narrow in what cd's it is compatible with versus my friends liteon drive. I have tried TDK, RICOH, RITEK, MEMOREX, and i only get good burns from the ricoh r01's. My question is which firmware should i use(and what may it accomplish if i flash to it), i heard/read that i should use either try flashing to the the sony dru 710a(which is the retail version of the d22a, but not a liteon rebranded drive) or the liteon 1633s firmware. Input is appreciated, i have never attempted this before. Oh, and i have already backed up my firmware using mtk, what i saw that was wierd is my backed firmware is 1MB and the 1633s firmware is half that, so im not sure if its a good idea to try it.